Aza compounds as anion receptors
AssigneeAssociated Universities, Inc.
InventorsHung Sui Lee, Xiao-Qing Yang, James McBreen
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Abstract
A family of aza-ether based compounds including linear, multi-branched and aza-crown ethers is provided. When added to non-aqueous battery electrolytes, the family of aza-ether based compounds acts as neutral receptors to complex the anion moiety of the electrolyte salt thereby increasing the conductivity and the transference number of Li.sup.+ ion in alkali metal batteries.
Claims3
A linear aza-ether having the formula ##STR10## wherein n.sub.1 =0-20, n.sub.2 =0-20, m=0-20 and n.sub.1 +n.sub.2 >0 and R is a substituent selected from the group consisting of CF.sub.3 SO.sub.2, CF.sub.3 CO, CN and SO.sub.2 CN.
A linear aza-ether having the formula ##STR11## wherein n>60 and R is a substituent selected from the group consisting of CF.sub.3 SO.sub.2, CF.sub.3 CO, CN and SO.sub.2 CN.
A multi-branch aza-ether which is a compound selected from the group consisting of NR'.sub.3 and CR".sub.4, wherein R' is R.sub.2 --N--CH.sub.2 --CH.sub.2 --, R" is R.sub.2 NCH.sub.2 CH.sub.2 NRCH.sub.2 --, and R is a substituent selected from the group consisting of CF.sub.3 SO.sub.2, CF.sub.3 CO, CN and SO.sub.2 CN.
Dependencies are inferred from the claim text.